Do you think David Cameron will be scared to decriminalise drugs?

To be honest I can see that guy turning around one day and just decriminalising them and especially with Nick Clegg being deputy and he said he'd decriminalise them before the election. I also found this today http://www.telegraph.co.uk/news/uknews/law-and-order/8393838/War-on-drugs-has-failed-say-former-heads-of-MI5-CPS-and-BBC.html